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Model 770-55-U

Flow Control Valve

The Model 770-55-U Flow Control Valve with Solenoid Control is a hydraulically operated, diaphragm actuated control valve that maintains preset maximum flow, regardless of fluctuating demand or varying system pressure. The valve opens and shuts off in response to an electric signal.
 

Features and Benefits

  • Line pressure driven – Independent operation
  • Hydraulic flow sensor (upstream installation)
    • No moving parts
    • No electronic components
    • No need for flow straightening
  • Solenoid controlled
    • Low power consumption
    • Wide range of pressure and voltage
    • Normally Open, Normally Closed or Last Position
  • In-line serviceable – Easy maintenance
  • Double chamber design
    • Moderated valve reaction
    • Protected diaphragm
  • Semi-straight flow – Non-turbulent flow
  • Stainless Steel raised seat – Cavitation damage resistant
  • Obstacle free, full bore – Uncompromising reliability
  • V-Port Throttling Plug – Low flow stability
     

Typical Applications 

Parallel Valve Installation
In a distribution network, there is often a need to respond to several flow regimes. In flow control valves, the orifice limits the valve adjustment range to about ±15%. Parallel installation of two Model 770-55-U valves enable:

  • Flow limiting for various flow regimes
  • Equalizing operating hours between valves